Skiving machine



May 3, 1932.

F. M. coURsER 1,856,155

'SKIVING MACHINE Filed May 4, 1931 3 Sheets-Sheet l `9L, :nmlllgm IIIIl-Illlllllh SKIVING MACHINE 'Filed May 4, 1931' 3 Sheets-Sheet 2 VE/v TUR.

May 3, 1932- MF. M. COURSER 1,856,155

SKIVING MACHINE Filed May 4, 1951 s sheets-sheet s //v Vf/v 70H. www

Patented May 3, 1932 UNITED STATES PATENT OFFICE FRED M. OOURSER, 0F HAVERHILL, MASSAGHUSETTS, ASSIGNOR T0 UNITED SHOE ,s

MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY SKIVING Application filed May' 4,

This invention relates to skiving machines and is herein illustrated as embodied in a machine of the Amazeen type designed for skiving edges of pieces of upper leather which are used in the manufacture of boots and shoes.

Machines of the Amazeen type comprise a rotary disk knife, a feed roll located beneath the knife, combined presser and edge guide for holding` the work against the roll and for engaging the edge of the work, and a inember, commonly a feed disk, which holds a portion of the work down upon the roll and cooperates with the roll in feeding the work. The work is fed away from the operator be neath the feed disk and prcsserand over the knife. In skiving the curved edges of shoe parts and the edges of ornamental holes in such parts, it is necessary to swing the work in its own plane; and this swinging movement may extend through 180C in cases in which the `edges of ornamental holes in the upper are being skived. It is thus desirable that a space free from all obstructions should `be provided on both sides of the feed roll at the level of the top of the roll.

To this end, and in accorcance with one feature of the invention, the presser is supported from the bearing of the feed disk shaft. This shaft located at one side of `the feed roll viewed in the direction of feed movement of the work; and the space at the level of the top of the roll on this side of the roll oi'i'ers no obstruction to the swinging of the work, since the work passes beneath the feed disk which is fast to the lower end of its shaft. In the illustrated construction both the presser and edge guide are supported b va bracket which is integral with the bearing for Jthe feed disk shaft, being angularly movable about the axis of the feed disk shaft, this mounting serving the double purpose of providing an unobstructed space on one side ofthe feed roll and of permitting the presser and gage to be swung out over the feed disk when it is desired to have access to the knife.

lllhen the edge of an ornamental hole in the work is to be skived it is desirable to separate the roll from the presser and edge guide, for example by lowering the feed roll tern- MACHINE 1931. Serial No. 534,813.

porarilyto permit the work to be properly placed in the machine with the edge guide in contact with the edge of the hole. It is also desirable to provide for a horizontal adjustment of the feed roll so as to locate it in proper' relation to the edge of the knife. To this end, according to another feature of the invention, means are provided for adjusting the roll toward and from the edge of the knife and for producing relative movement of separation between the presser and guide and the roll preparatory to skiving the edge of a hole in the work to permit the work to be placed upon the roll with its ornamental hole beneath the edge guide so that, when the roll returns to operative position, the guide will enter the hole. In the illustrated machine the carrier for the feed roll shaft is mounted for swinging movement in two directions, horizontally about a vertical pivot, and vertically about a horizontal pivot which is carried by the vert-ical pivot. A clamping screw holds the carrier adjustably in the desired position horizontally; a spring normally holds it up with. the roll in operative pos'ition, and a treadle furnishes means for telnporarily lowering it to lower the roll.

These and other features of the invention, including an improved mounting of the presser and edge guide for various adjustments, and an improved knife guard, will be described as embodied in an illustrated machine and pointed out in the appended claims. s Referring now to the accompanying drawings,

Fig. l is a front elevation of a machine in which the present invention is embodied;

` Fig. 2 is a similar view on an enlarged scale of a portion of the machine partly in elevation and partly in section;

Fig. 8 is a detail in plan of the pivotal mounting ofthe feed roll carrier;

Fig. l is a section on the line IV-IV of Fig. 2 showing the mechanism for holding the feed roll carrier in adjusted horizontal position;

Fig. 5 is a section on the line V--V of Fig. 2; and y Fig. 6 is a horizontal section through the (ill feed disk shaft and knife shaft, certain parts of the machine having been omitted.

The machine in general is similar to the machine shown in United States Letters Patent No. 823,57 8, granted June 19, 1906 upon an application filed in the name of Charles the work being in engagement withan edge,

guide 13, and the work being held down upon the roll close to the edge guide by a presser 15. The feed roll is fast to the outer end of a horizontal shaft 17 driven by a vertical shaft 19 which in turn is driven by the main driving shaft 21. The knife7 is driven Vby a flat belt 23 from a pulley 25 on the driving shaft, said knife being adjustable substantially vertically by an adjusting screw 27 and being angularly adjustable by loosening a clamp screw 29 and adjusting, by means of a screw 32, the casting 31 by which the knife is carried. The feed disk, unlike that of the patented machine, is driven by a belt 33 running around a pulley 35 on the feed disk shaft and a pulley 37 on the upright shaft 19. The machineasthus far described, except for the belt drive of the feed ydisk shaft, is or may be substantially the same as the patented machine and no further details of the old construction will be given. Y

In the patented machine the spaceV at the right or inner end of the feed roll is obstructed by the bracket which carries the presser and edge guide. In the machine of the present application this space is free and unobstructed since the presser and edge guide are supported from a bearing of the feed disk sha-ft. The presser 15 (Fig. 2) is vertically slidable in a carrier in the form of a casing 37 .with the lower right-hand portion of which the edge guide 13 is integral. The presser is fast to the lower` end of the small rod 39 encircled by a coiled spring 41, the

Vupper end of the rod being slidable through a sleeve 43 threaded through the upper wall of the casing and having threaded upon its upper end a nut 45. By turning the sleeve 43 the tension of the coiled spring 41'may'be varied; and by turning the nut 45 the presser 15 may be adjusted vertically. The casing is mounted for horizontal and angular adjustment on the horizontally extending stem 47 of a T-shaped block, the head of ,said block49 being adjustablyheld, in a manner presently to be described, in a bracket 51. The horizontal arm 47 has aslot 53, and the casing 37 has two ears on opposite sides-of it, the right-hand one of which has a hole to receive a threaded screw (Fig. 5)-.

.The head of this screw is slidable in a horizontal guideway on the back of the slotted stem 47 and has threaded on its outer end a clamping nut 50. The left-hand ear on the casing 37 has a vertical slot through which and through the slot 53 in the stem 47 passes a second clamping screw 57 the head of which is also'slidable in the guideway on the back of the stem 47 and the outer end of which is provided with a clamping nut 59. The head 49 of the T-shaped block -is adjustably held in a split dovetailed guideway in the bracket 51 by a pinch screw 61 (Fig. 2). Integral with the bracket and extending upwardly is a bushing 151 for the shaft 63 of the feed disk, said bushing being held in place vertically by a collar which rests upon a stationary split bearing lug 67, said bearing lug being part of the feed disk shaft carrier presently to be described. The bushing 151 is normally'held from angular movement by a pinch screw 69 (Fig. 5) which engages the split bearing lug 67. Iith the construction which has just been described, the presser foot 15 may be adjusted vertically by turning the nut 45. The casing inwhich the presser foot is mounted may be adjusted horizontally by loosening the nuts 50 and 59 and sliding the casing horizontally. The casing may be adjusted angularly by loosening the same nuts and swinging the casing about the axis of the screw 55. Thecasing may be adjusted back and forth in the line of feed by loosening the pinch screw 61V and sliding the head 49 in its dovetailed guideway. It should also be noted that, when the pinoli screw 69 has been loosened, the whole mounting of the presser foot and gage may be swung outwardly toward the observer and toward the left so as to expose to view the forward edge of the knife. In order to make sure that when this whole mounting is swung back it will always occupy the same position, there is provided (Fig. 5) a stop shoulder 7() on the bearing lug 67 with which a shoulder on the bracket 51 contacts.

The feed disk 11 (Fig. 2) has a short stem which extends up into a cylindrical chamber in the lower part of the feed disk shaft, said stem being connected to said shaft by a pin 71 which extends through the stem and through alined vertical slots in the shaft. A coiled spring 73 rests upon the top of the stem, and the tension of this spring may be varied by turning the'thumb screw 75 (Fig. 1) which is threaded through a solid portion of the feed disk shaft and bears against the topA of a small cylindrical block 77 said block resting upon the upper end of the spring. )Vith this construction, the feed disk may yield to provide for pieces of work of different thicknesses, and the force with which the said disk presses down the work may be varied.

As has been explained above, the split bearing lug 67v is part of the feed disk carrier;

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Lemans und carrier, as will :now be explained, is adjustable -on'the frame `of `the machine formrd `and lbackward transversely of the axis of the feed roll Ain `order to `position 'the feed disk properly with respect to the feed roll. This bearing; lug-167 and the one above it ',167 (Fig. 1) are integralwrith a carrier 79 (Fig. 6) which is horizontally slidable on a guide `bar 81 fastened to the frame of the machine by screws 83. In order ato adjust the feed disk carrier, an adjusting' screw 85 is thread- `ed through a lun` on the carrier 79 and iS ro- `tatably mounted in alined bores in the outwardly bent ends of the guide lbar 81, collars 87 and 89 being provided to hold the screw from longitudinal movement. The lug through which the screw is threaded is split, and a pinch `screw 91 provides means for llrolding the feed disk carrier in adjusted position. WVhen it is desired to make this adjustlnent7 the pinch screw V911 is loosened and the adjusting screw 85 is turned. It should be noted that this adjustment of the feed disk t lansversely :of the axis of the feed roll :also adjusts the presser foot and edge guide.

"The feed roll. 9 2) is fast to the outer und of the horizontal shaft 17 mounted `in a `cari-:ker conilprisine' a flat "bar 93 having' upstanding end-s provided with bearings to receive the shaft, the carrier being mounted for swinging movement ina horizontal plane as well as in a vertical plane. To this end the 'dat bar 93 has conical recesses on opposite sides thereof (Fig. 3) to receive two conically pointed screws 95 threaded through upstanding ears on a plunger the stein of which is vertically slidable and angularly movable in a socket carried by the frame of the ina- `chine. The carrier may thus swing` in the two paths noted.

In order to hold the carrier in the position shown with the feed roll normally in raised operati-ve position `to feed the work to the knife. a fiat topped plunger 99. urged upwardly continually by a Spring' 101, holds the top `of the har 93 against a stop 103 which is fastened to the frame of the machine, ln `order to cause the roll carrier to swine; down when desired about the of `the screws a treadle rod 105 is attached to the stem of the plunger 99. The roll carrier is guided in its vertical swinging); movement by two guides 107 (Fig. which are integral with a bracket 109. This bracket has a horizontal slot 111 through which passes a clamping; screw 113 the stem of which is threaded into the frame of the machine so that, when the screw is loosened, the roll carrier may be swung about the axis of the stem 97 to adjust the feed roll toward and from the edge of the knife.

lt is desirable to set the roll and the knife in exactly the correct relative positions in order to produce the best work, Athese relative positions usually being'such that the forward duced upon the work.

`point on the knife (the point nearest tothe operator) is directly above the uppermost element ofthe feed roll and in approximately the center `of the scarf lwhich is Lto be pro- To facilitate such adjustment, a small flat bar 115` (Fig. `6) isslidably mounted on the bearing;` 117` lof the lfeed roll shaft; and there is formed on the periphery ofthe hub yof the roll a flat surface ,to receive the .end of the bar, there being` formed on the periphery of the roll a mark 119. The location of the flat surface andthe niark is such that when .the flat bar 115 is in engagement with the fiat surface on the hub of the roll, :as shown in Fig. G, the mark indicates the uppermost 4element on the operative surface of the feed roll. When, therefore, the presser foot and guide have been ysw-ung out of the way, the operatorcan view .the knife and roll and make the proper ad i justinents. The small har is, `of course, 1n inoperative position as shown in Figs. 1 and '2 when the vmachine is running.

In order to provide for longitudinaliadj ustment of the roll shaft 17, the outer endof that shaft (Fig. 2) is received ina bushing 121 threaded through an upstandingr `end of the `bar 93 and held from longitudinal move ment with respect to the shaft by 1a head on the cute end of the shaft and a `collar 125 fastened `to the shaft thy a|` set screw 127,.a lock nut 130 being provided .to hold the ibushing` 121 firmly lin its adjusted position. The picar 131 is keyed to the shaft `and is limited in its movement to the right by a bracket 133 adjustahly carriedby `the bar 93. The qrears 131 4and 135 :mesh loosely so `that the adjustmenge of the feed roll carrier may `take place uwithout difficulty.

In order to prevent a piece fof work, which is being swung; during the skiving operation, from contactingwith the imite, a guard 137 (Fig. 5) of agienerallycrescent shape eX- tends beneath the knife. This guard iswad- `iustably held in posit-ion against the lower face of a head 139 at the 'lower end of a small rod 141 by a screw 143, .the head of which bears against the underside of the guard and the stein of which passes through a slot 1435 in the guard and is threaded `into the head 139 at a point `offset `from the axis of the rod 141.y This rod (Fig. Q) is held in a 'split socket which is mounted on the knife carrier 31 by a pinchserew 147. When the pinch screw 147 and the clamping screw 143 have been loosened, the guard may be adjusted up and down as well as horizontally toward and from the knife.

In the operation of :the machine, assuming that it is desired to skive the edge of a hole in a piece of leather, the treadlerod 105 pulled down so `as toprovide a space between the upper surface of the roll and the presser foot and edge guide. The piece of work is slid into place with the hole beneath `the edge guide, and the treadle rod is released. The work is now in proper position in the machine with the edge of the hole in contact with the edge guide 13. The operator proceeds now .to skive the edge of the hole during which he lswings the work as may be necessary. Inasmuch as the work is beneath the feed disk 11 at one side of the roll and there are no obstructions whatever on the other side it is possible to swing the work through 180. If it is desired to adjust the roll toward the knife to provide for a knife of smaller size, this may be done by loosening the clamping screw 113 and swinging the roll carrier 93 about the axis of the stem 97, this movement being permitted by reason of the fact that the roll carrier slides horizontally on the top of the plunger 99. In such case it will be desirable to adjust the feed disk in order to preserve its proper position with respect to the roll; and this may be done by loosening the pinch screw 91 (Fig. 6) and turning the adjusting screw 85. In order to secure the desired relative positions of the knife and the roll, the roll is turned until the flat place on its hub is in the path of the small bar 115, and the bar is moved into the position shown in Fig. 6. `The pinch screw 69 is now loosened and the presser foot and gage swung out of the way so that the operator may observe the mark on the roll and adjust the knife and roll accordingly.

Having thus described my invention, what I claim as new and desire to secure by Letters of Patent of the United States is:

1. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a shaft by which the feed disk is carried, a bearing for the shaft, and a pressersupported by the bearing and extending over the roll.

2,'A machine of the class described having. in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a shaft by which the feed disk is carried, a bearing for the shaft, and a presser supported by the bearing extending over the rolland mounted for movement toward andfrom the knife. Y 3. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, 'a shaft by which' the feed disk is carried, a bearing for the shaft, and a presser supported by the bearing extending over the roll and mounted for swinging movement toward and from the knife. Y Y

4. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a presser, and a bracket by which the feed disk and the presser are supported, said bracket being mounted on a stationary part ofthe machine for adjustment in a path lying at an angle to the axis of the feed roll.V

5. A machine of the class described' having, in combination, a rotaryY disk knife, a feed roll, a co-operating feed disk, a presser, and a bracket by which the feed disk and the presser are supported, said bracket being mounted on the frame of the machine for adjustment in a path lying at an angle to the axis of the feed roll.

6. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a presser, and a bracket by which the feed disk and the presser are supported, said bracket being slidably mounted on the frame of the machine for adjustment in a path lying at an angle to the axis of the'feed roll.

7. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a presser movable from its normal position above the roll into a position adjacent to the feed disk, and a bracket by which the feed disk and the presser are supported, said bracket being adjustable transversely of the axis of the roll.

8. A machine of the class described having, in combination, a rotary disk knife, a feed roll. a co-operating feed disk, a feed disk shaft, a bearing for the shaft, and a presser supported bv the bearing and located above the roll, said bearing beingadjustable transversely of the axis of the feed roll.

9. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a co-operating feed disk, a feed disk shaft, a bearing for the shaft, and a. presser supported by the bearing and mounted for movement toward and from the knife, said bearing being adjustable transversely of the axis of the feed roll.

10. A machine of the class described having, in combination, a feed roll having a substantially horizontal axis', a rotary disk knife having its axis located behind the axis of the roll, a feed disk having its axis located at one side of the roll, a presser normally located above the roll, and a member by which the presser is carried, said member being adjustably mounted on a stationary part of the machine for movement in a path to move the presser away from the roll into a position on the same side of the roll as that on which the axis of the feed disk is located.

11. A machine of the class described having, in combination, a rotary disk knife. a feed roll, a co-operating feed disk, anda presser and edge guide movable from its normal position above the roii into a position at one side of the roll adjacent to the feed disk.

12. A machine of the class described having, in combination, rotary disk knife, a feed roll, a feed disk adapted to co-operate with the roll to feed the work, a shaft by which the feed disk is carried, a bearing for the shaft, a bracket carried by the bearing,

nasales! and a presser' supported by the bracket, said bracket being movable in a path to move the presser toward and from the knife.

13. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed disk adapted to co-operate with the roll to feed the work, a shaft by which the feed disk is carried, a bearing for the shaft, a bracket carried by the bearing, and a presser supported by the bracket, said bracket being movable in a curved path to move the presser toward and from the knife.

14, A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed disk adapted to co-operate with the roll to feed the work, a shaft by which the feed disk is carried, a bearing for the shaft, a bracket carried by the bearing, ai block mounted for adjustment on the bracket, and a presser supported by the block, said bracket being movable in a path to move the presser toward and from the knife.

l5. A machine of the class'described having, in combination, a rotary disk knife, a

" feed roll, a feed disk adapted to co-operate with the roll to feed the Work, a shaft by 'which the feed disk is carried, a bearing for the shaft, a bracket carried by the bearing, a block mounted for adjustment on the bracket in a direction substantially parallel to the feed movement of the work, and a presser supported by the block, said bracket being movable in a path to movethe presser toward and from the knife.

16. A machine of the class described having, in combination, a rotary disk knife, a feed. roll, a feed disk adapted to cro-operate with the roll to feed the Work, a shaft by which the feed disk is carried, a bearing for the shaft, a bracket carried by the bearing, a block mounted for adjustment on the bracket in a direction substantially parallel to the feed movement of th-e Work, a carrier mounted for angular adjustment on the block,

and a presser mounted in the carrier, said bracket being movable in a path to move the presser toward and from the knife.

1T. A machine for skiving the edge of an ornamental hole in a piece of work having,

in combination, a rotary disk knife, a feed roll located below the knife, said roll b eing mounted for adjustment in a substantially horizontal path toward and from the knife,

j a guide for engaging the edge of the work, and means for separating the roll and guide preparatory to the skiving operation to permit the Work to be placed upon the roll with its ornamental hole beneath the guide, whereby the guide will enter the hole when the` guide and roll are brought again into operative position.

18. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feedroll shaft, a carrier in which w the shaft is rotatably mounted, said carrier being mounted for movement in two paths, one substantially vertical and the other substantially horizontal, and an operator-controlledmember for causing movement of the carrier in the vertical path, the carrier being slidable with respect to said member to permit movement of the carrier in its horizontal path.

19. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed roll shaft, a carrier in which the shaft is rotatably mounted, said carrier being mounted for swinging movement in two paths, one substantially vertical and the other substantially horizontal, and an operator-controlled member for causing movement of the carrier in the vertical path, `the carrier being slidable upon said member to permit movement of the carrier in its horizontal path.

20. A machine of the class described having, in combination, a rotary disk knife, a

feed roll, a feed roll shaft, a carrier for the shaft, a substantially horizontal pivot for the carrier, and a substantially vertical pivot by which the horizontal pivot is carried.

2l. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed roll shaft, a carrier for the shaft, a substantially horizontal pivot for the carrier, a substantially vertical pivot by which the horizontal pivot is carried, and operator-controlled means for swinging the carrier about the horizontal pivot.

22. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed roll shaft, a carrierfor the shaft, a substantially horizontal pivot for the carrier, a substantially vertical pivot by which the horizontal pivot is carried, and a guide for the carrier during its movement loc about the horizontal pivot, said guide being adjustable horizontally to swing the carrier about theve-rtical pivot.

23. A machine of the class described having, in combination, a rotary disk knife, a roll normally located below and close to the knife for feeding the work, a cooperating feed disk, said roll and disk being adjustable in directions substantially parallel to the direction of feeding movement of the Work, an edge guide, and operator-controlled means for lowering the roll to permit the edge of a hole in the work to be engaged by the guide.

24. A machine of the class described having, in combination, a rotary disk knife, a roll normally located below and close to the knife for feeding the work, a co-operating feed disk, said roll and disk being adjustable in directions substantially parallel to the directionof feeding movement of thelwork, an edge guide mountedfor swinging movement controlled" means for lowering the roll to permit the edge of a hole in the' work to be engaged by the guide.

25. A machine of the class described having, in combination, a rotary disk knife, a

roll normally located below and close to the 4- an edge guide mounted for swinging movement about the axis of the feed disk toward and from the knife, and operator-controlled means for lowering the roll to permit the edge of a hole in the work to be engaged by the guide.

26. A machine of the class described having, in combination, a rotary disk knife, a feed roll, an edge guide, a feed roll shaft, and a carrier in which the shaft is mounted, said carrier being mounted for movement in a path to separate the roll from the guide so thata piece of work having a hole in it may be slid between the guide vand the roll to permit the guide to enter the hole, and for movelment in al path at right angles to the firstnamed knife.

27.. A machine of the class described having, in combination, a rotary disk knife, a

path toward and froml the edge of the feed roll, an edge guide, acarrier in which the roll is mounted, a member about the axis of which the carrier may be swung to move the roll toward and from the edge of the knife, and a pivot carried by said member about j which the carrier may be swung to move the roll away'from the face of the knife.

28. A machine of the class described having, in combination, a rotary disk knife, a feed roll, an edge guide, a carrier in which the roll is mounted, a member about the axis of which the carrier'may be swung in a substantially horizontal path to move the roll toward andfrom the edge of the lmife, and a pivot carried by said member about which the carrier may be swung in a substantially vertical path to move the roll away from the face of the knife. c f

29. A machine of the class described having, in combination, a rotary disk knife, a feed roll, a feed roll shaft, acarrier in which the shaft is rotatably mounted, said carrier being mounted for movement in two paths, one substantially vertical toward-and from the under face of the knife and the other substantially horizontal toward and from the edgeof the knife, and an adjustable guide for the carrier which guides the carrier in the vertical movement and serves, when adjusted, to cause horizontal movement of the carrier.

30. A machine of the class described having, lin combination, a rotary disk knife, a feed roll, a feed roll shaft, a. carrier in which the shaft is rotatably mounted, said carrier being mounted for swinging movement in two paths, one substantially vertical towardY guide for the carrier which guides the carrier" in the` vertical movement and serves, when adjusted, to cause horizontal movement of the carrier.

3l.V A machine of the class described havin combination, a rotary disk knife, a

feed roll, a feed roll shaft, and a bearing for the shaft threaded into a stationary part of the machine and held from longitudinal movement with respect to the shaft whereby rotating the bearing adjusts the shaft longi-' tudinally.

32. A machine of the class described having, in combination, a diskknife, a feed roll, a feed roll shaft, a bearing for one end of the shaft comprising a bushing threaded through a portion of the frame, and members on the shaft contacting respectively with the ends of the bushing whereby rotating the bushing adjusts the shaft longitudinally. c

33. A machine of the class described hav-I ing, in combination, a rotary disk knife, a feed roll, a pressureadapted to press the work against the roll, a carrier in which the pressure is yieldingly mounted, said carriery having a hole and asubstantially vertical slot, a supporting block having a substantially horizontal slot, means passing throughthe; hole in the carrier and the slot in the block for clamping the carrier to the block in adjusted horizontal position, and means passing through the slot in the ,carrier-and the slot in the block for clamping the carrier in adjusted angular position.

34. A machine of the class described hav-v ing, in combination, a rotary'disk knife, a guard substantially parallel to the plane of the knife and extending beyond the edge thereof, and a headed pin by which the guard is carried, said pin being mounted for axial and for longitudinal adjustment.

35. A machine of the class described having, in combination, a rotary disk knife, a slotted guard substantiallyV parallel to thek plane of the knife and extending beyond the 36. A .machine of the cla-ss described hav-` ing, in combination, a skiving knife, a feed roll having a mark thereon, a stationary member with respect to which the roll isrotatable,

and means associated with 4the stationary member for holding the roll temporarily stationary with the mark in a position visible to the operator to facilitate adjusting the roll and knife into the desired relative positions. f f

37. A. machine of the class described having, in combination, a skiving knife, a feed roli having a marl; thereon, a stationary meno ber with respect to which the roll is rotatable, and ineans associated with the stationary y member for holding the roll temporarily sta- Bil tionary with the mark in a position to indicate the uppermost portion on the periphery of the roll to facilitate adjusting the roll and lrnfe into the desired relative positions. ln testimony whereof l have signed my name to this specification.

FRED M. COURSER. 

